Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11597124 | Method of treating post-tensioning strand wedges with induction heating | — | 2023-03-07 |
| 11473302 | Segmental duct coupler devices, systems, and methods | Zuming Xia, John R. Crigler | 2022-10-18 |
| 9982434 | Encapsulated anchor devices, systems, and methods | John R. Crigler | 2018-05-29 |
| 9879804 | Duct coupler devices, systems, and related methods | John R. Crigler, Gus Dean Hammonds, Robert William Sward | 2018-01-30 |